Class: AdLint::Cpp::Initial

Inherits:
LexerState show all
Defined in:
lib/adlint/cpp/lexer.rb

Instance Method Summary collapse

Methods inherited from LexerState

#initialize

Constructor Details

This class inherits a constructor from AdLint::Cpp::LexerState

Instance Method Details

#next_token ⇒ Object 



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# File 'lib/adlint/cpp/lexer.rb', line 307

def next_token
  # NOTE: An escaped newline may appear at the line above a preprocessing
  #       directive line.
  loop do
    unless discard_heading_comments || scan_escaped_newline(@lexer.content)
      break
    end
  end

  case
  when @lexer.content.check(/[ \t]*#/)
    case
    when tok = tokenize_if_directive(@lexer.content)
      @lexer.transit(InIfDirective.new(@lexer))
    when tok = tokenize_ifdef_directive(@lexer.content)
      @lexer.transit(InIfdefDirective.new(@lexer))
    when tok = tokenize_ifndef_directive(@lexer.content)
      @lexer.transit(InIfndefDirective.new(@lexer))
    when tok = tokenize_elif_directive(@lexer.content)
      @lexer.transit(InElifDirective.new(@lexer))
    when tok = tokenize_else_directive(@lexer.content)
      @lexer.transit(InElseDirective.new(@lexer))
    when tok = tokenize_endif_directive(@lexer.content)
      @lexer.transit(InEndifDirective.new(@lexer))
    when tok = tokenize_include_directive(@lexer.content)
      @lexer.transit(InIncludeDirective.new(@lexer))
    when tok = tokenize_include_next_directive(@lexer.content)
      @lexer.transit(InIncludeNextDirective.new(@lexer))
    when tok = tokenize_define_directive(@lexer.content)
      @lexer.transit(InDefineDirective.new(@lexer))
    when tok = tokenize_undef_directive(@lexer.content)
      @lexer.transit(InUndefDirective.new(@lexer))
    when tok = tokenize_line_directive(@lexer.content)
      @lexer.transit(InLineDirective.new(@lexer))
    when tok = tokenize_error_directive(@lexer.content)
      @lexer.transit(InErrorDirective.new(@lexer))
    when tok = tokenize_pragma_directive(@lexer.content)
      @lexer.transit(InPragmaDirective.new(@lexer))
    when tok = tokenize_asm_directive(@lexer.content)
      @lexer.transit(InAsmDirective.new(@lexer))
    when tok = tokenize_endasm_directive(@lexer.content)
      @lexer.transit(InEndasmDirective.new(@lexer))
    else
      tok = tokenize_null_directive(@lexer.content) ||
            tokenize_unknown_directive(@lexer.content)
    end
  else
    tok = tokenize_text_line(@lexer.content)
  end

  tok
end